Missing annotations for ipv6 trn02

[gfr10598]

Addresses in prefix 2a07:1ec0:775 are not being annotated by site.Annotate(). This is showing up in the prototype pcap parser, where we use it to identify which end of a connection is the server.
The three IP addresses (in ndt/pcap data) that are not being annotate are:
2a07:1ec0:775::203
2a07:1ec0:775::216
2a07:1ec0:775::229

These should be annotated with siteinfo for trn02, which include 2a07:1ec0:775::/48
https://siteinfo.mlab-oti.measurementlab.net/v1/sites/annotations.json

Annotation seems to be working fine for trn02 in uuid-annotator, based on ndt7 tables:
SELECT raw.ServerIP, Server FROM measurement-lab.ndt.ndt7
WHERE date > "2021-12-14"
AND raw.ServerIP LIKE "%2a07:1ec0:775%"
LIMIT 1000

It also seems to be working ok in tcpinfo annotation in the legacy pipeline:
SELECT Server FROM measurement-lab.ndt.tcpinfo
WHERE partition_date > "2021-12-14"
AND Server.IP LIKE "%2a07:1ec0:775%"
LIMIT 1000

[gfr10598]

Today, the pcap parser is failing to annotate server side IPs for mex01
-"2604:d600:1000:3::75"
-"2604:d600:1000:3::88"
-"2604:d600:1000:3::101"

This log message may be suspicious:
site.go:49: 242 sites loaded with 452 networks

Should there be 484 networks?